1: <?php
 2: /**
 3:  * Klutz_Comic_Direct Class.
 4:  *
 5:  * This class takes uses $comic->url to get an image directly.
 6:  * This is, of course, the most efficient as it takes one fetch.
 7:  *
 8:  * @author Marcus I. Ryan <marcus@riboflavin.net>
 9:  * @package Klutz
10:  */
11: class Klutz_Comic_Direct extends Klutz_Comic
12: {
13:     /**
14:      * Constructor - Create an object that can be used to retrieve a comic
15:      * directly from a URL passed in (using substitutions as necessary).
16:      *
17:      * @param string $comic  Index for the comic
18:      */
19:     function Klutz_Comic_direct($comic)
20:     {
21:         // Call the parent constructor...this should leave $comic with
22:         // just the parameters we need for fetching (if any are left).
23:         $par = get_parent_class($this);
24:         $this->$par($comic);
25: 
26:         if (is_null($this->subs)) {
27:             $this->subs = array("url");
28:         }
29: 
30:         // assuming $this->url is set, so are we...
31:     }
32: 
33:     /**
34:      * Do all that is necessary to get the final URL from which the comic
35:      * will be fetched.  Instead of returning the comic, return the URL
36:      * pointing to that comic.
37:      *
38:      * @param timestamp $date  Date of the comic to retrieve (default today)
39:      *
40:      * @return string  URL of the comic image
41:      */
42:     function fetchURL($date = null)
43:     {
44:         if (is_null($date)) {
45:             $date = mktime(0, 0, 0);
46:         }
47:         $offset = $this->getOverride('offset', $date);
48:         $d = getdate($date);
49:         $date = mktime(0, 0, 0, $d['mon'], $d['mday'] - $offset, $d['year']);
50: 
51:         $url = $this->getOverride('url', $date);
52:         if (in_array('url', $this->getOverride('subs', $date))) {
53:             $url = $this->substitute($url, $date);
54:         }
55: 
56:         return $url;
57:     }
58: 
59:     /**
60:      * Fetch the actual image
61:      *
62:      * @param timestamp $date  The date to retrieve the comic for (default
63:      *                         today).
64:      *
65:      * @return mixed  Klutz_Image on success, false otherwise.
66:      */
67:     function &fetchImage($date = null)
68:     {
69:         if (is_null($date)) {
70:             $date = mktime(0, 0, 0);
71:         }
72:         $offset = $this->getOverride('offset', $date);
73:         $d = getdate($date);
74:         $date = mktime(0, 0, 0, $d['mon'], $d['mday'] - $offset, $d['year']);
75: 
76:         $url = $this->getOverride('url', $date);
77:         if (in_array('url', $this->getOverride('subs', $date))) {
78:             $url = $this->substitute($url, $date);
79:         }
80: 
81:         $this->_initHTTP($date, $url);
82:         $this->http->setURL($url);
83:         $this->http->sendRequest();
84: 
85:         $image = &new Klutz_Image($this->http->getResponseBody());
86:         if (is_null($image) || is_null($image->type)) {
87:             $image = false;
88:         }
89: 
90:         return $image;
91:     }
92: 
93: }
94: